Loose or idle pulley



(No Model.)

.T. W. SIMOOX.

LOOSE 0R IDLE-PULLEY.

Patented July 5,1892.

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ms NORRIS PETERS cm, FHOTD-LITHO., WAsHlNumN, r:v c.

UNITED STATES THOMAS W. SIMCOX,

PATENT @nnrcn.

on FOSTORIA, 01110.

LOOSE OR IDLE PULLEY.

SPECIFICATION forming part of Letters Patent N 0. 478,292, dated July 5,1892.

Application filed November 2,1891- Serial No. 410,662. (No model.)

Ohio, have invented a new and useful Loose or Idle Pulley, of which thefollowing is a specification.

This invention relates to pulleys; and it has for its object to providea loose or idle pulley that is not only provided with means wherebylateral adjustment may be had for the purpose of taking up the wear ofthe pulley upon the shaft, but also to provide a pulley of thischaracter which is easily and automatically lubricated.

With these and other objects in view, which will appear as the nature ofthe invention is better understood, the same consists in an idlerconstructed in the novel mannerhereinafter more fully described,illustrated, and claimed.

In the accompanying drawings, Figure 1 is a side elevation of a loose oridle pulley constructed in accordance with my invention. Fig. 2 is avertical transverse section of the same mounted upon a shaft. Fig. 3 isa detail perspective of the double-cone shaftsleeve.

Referring to the accompanying drawings, A represents an ordinary shaftoperated by any machinery and designed to be provided with anidler-pulley for the ordinary purposes of belt-shifting. Rigidly securedto said shaft is a double-cone sleeve or collar B, provided with acountersunk perforation b, that is designed to receive a clamping-screwb, passing through said perforation, and thus securing said sleeve orcollar rigidly upon the shaft A. The idler-pulley O is designed to besecured upon and work over said sleeve or collar B, revolving with theshaft, and the same is cast in the ordinary manner, having the radialspokes D, but has cast integral with the spokes and the rim thereof thehalf hub E, that is designed to fit snugly over one of the cone-halvesof said double-cone sleeve or collar and revolve thereover, saidhalf-hub being of course cast in a conical shape to correspond with theshape of one-half of said sleeve. Each of said spokes D is provided witha threaded opening or perforation d, and the inner edge and lower innerends of the half-hub and the spokes, respectively, are provided with acontinuous squared annular recess or groove 6, that is designed for thereception of oil or other lubricant to continuously lubricate the idlerand the cone-sleeve over which'the same revolves. The idler C is securedover and held upon said double cone by means of the detachable andadjust able half-hub section or clamp F. The said hub section or clamp Fis cast in a conical shape to fit the opposite half of the doubleconesleeve and is provided with the radiallyextending arms f, having theperforations f that are designed to receive the cap-bolts G passingtherethrough and engaging the threaded perforations cl of each spoke,thus adjustably clamping the detachable hub-section with the body of theidler, the same being prevented from tightening upon the double cone,andthus preventingthe idler from freely revolving thereover by means ofacompressi ble packing H, interposed between the spokes D and theradially-extending arms f of the detachable hub-section. Although thecapbolts are used to adj ustably connect the section of the idler-pulleys together, capsorews or male threads on the half-hub and femalein the pulley proper may be means advantageously employed for thepurpose of adjustably securing the sections together. The saiddetachable hub-section F is further provided upon its inner face with anannular projecting flange f that is designed when the same is clamped tothe main body of the idler to project within the annular oil recess orgroove in the half-hub, and thus close said recess and hold the oil orother lubricant therein.

The construction and operation of the herein-described idler-pulley arenow thought to be apparent without further description.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is

In an idler-pulley, the combination, with a revolving shaft, of adouble-cone sleeve or collar secured upon said shaft, a pulley providedwith a conical half-hub adapted to fit upon one-half of said sleeve orcollar and with a squared annular recess or groove formed in the innerface of said half-hub, a detachable half hub corresponding to the shapeof the cone-sleeve and adapted to fit said arms to said spokes,substantially as set [0 upon the opposite half thereof, the samebeforth. ing provided with a series of radially-extend- In testimonythat I claim the foregoing as ing arms corresponding to the spokes ofthe my own I have hereto affixed my signature in 5 Wheel and with aninwardly-projecting annnthe presence of two Witnesses.

lar flange adapted to project within said an- THOMAS WV. SIMCOX. nularrecess or groove, packing interposed Witnesses: between said arms andthe spokes of the CHARLES L. GUERNSEY,

Wheel, and means for adjustably clamping CHAS. A. STRAUCH.

